1. Regional Electric and Natural Gas Use Trends 2005, 2009, 2010 ACPAC September 19, 2011

2. Outline Data Sources Natural Gas Electricity Renewables 2

3. Data Sources- Utilities 3 Columbia Gas (Fairfax, Loudoun, Prince William Counties; Cities of Manassas and Manassas Park) Constellation Energy (Montgomery & Prince Georges County) Dominion Virginia Power (COG Virginia territory except Cities of Manassas & Manassas Park) Manassas (City of Manassas) NOVEC (Fairfax, Loudoun, Prince William Counties; Cities of Manassas & Manassas Park) Pepco (District of Columbia, Montgomery & Prince Georges Counties) Potomac Edison formerly Allegheny Power (Frederick & Montgomery Counties) Washington Gas (All COG territory except city of Manassas)

4. Natural Gas Use 4 Large growth in Loudoun County in all sectors except Group Metered Apartments, Large growth in Fairfax City Residential, decrease in Commercial and Group Metered Apartments Note: Interruptible is only a category in 2005, and Industrial is combined with Commercial in 2005 based on provided data.

5. Electric Use 5 Large drop in Frederick County Industrial since 2005 due to closed aluminum plant Large growth in Loudoun County in all sectors NOVEC in Fairfax, Loudoun Counties saw government growth, likely due to efforts to correctly categorize accounts

6. Grid Connected Systems 6

7. Residential Electric and Natural Gas Use per Capita YearUse per Capita (kWhe) % Change from previous year Total Degree Days (TDD) % Change from previous year 20059,880-5,996- 20099,710-2%5,807-3% 20109,7200%6,152+6% 7 Residential Electric and Natural Gas Use per Capita represents residential electric use plus residential and group metered apartment natural gas use combined using a kWh equivalent factor for natural gas of 29.3. Total Degree Days represents the sum of heating and cooling degree days. A greater number of degree days annually indicates higher heating and cooling needs. 2005 and 2009 populations from COG Planning Department 2005-2009 Economic Trends Report; 2010 population from COG tabulation of 2010 Census data2005-2009 Economic Trends Report

8. Climate Change Report Goal COG has a goal to reduce greenhouse gas emissions 10% from Business as Usual, or back to 2005 levels, by 2012 Since 2005, the regions total electric and natural gas use has increased by 2% 8 2012 goal Note: COGs goal is to reduce the greenhouse gas inventory to 2005 levels, this chart shows reduction in electric and natural gas use needed if reductions from all contributions are equal.

9. Climate Change Report Recommendation Recommendation: Identify best practices to reduce local government energy use by 15 percent by 2012 Since 2005, the regions government electric and natural gas use has increased by 10% 9 2012 goal

10. Questions/Comments? Jeannine Altavilla 202/962.3245 jaltavilla@mwcog.org 10